require 'hws_settings'
require 'json'
require 'p4_error'
require 'p4_util'
require 'sinatra/base'

module Auth
  # Authentication interface for helix web services
  class App < Sinatra::Base

    # This method allows people to generate a host unlocked p4 ticket
    #
    # One subtle behavior of p4 login -p, is that it will reuse any token
    # lying in a p4ticket file. What this means, is that if you sign on, say,
    # using the p4 command line, this method will end up reusing and returning
    # that ticket.
    #
    # So, make sure you run your web services instance in a clean environment
    # that you don't do interactive work (like maintenance stuff) under.
    post '/auth/v1/login' do
      user = params[:user]
      password = params[:password] # may be a p4 ticket

      ticket = nil

      if HWSSettings.system.ENABLE_HELIX_CLOUD_AUTH
        # TODO(HelixCloud)
      else
        env['p4'] = P4Util.open_from_env(env)

        p4 = env['p4']
        p4.user = user
        p4.password = password
        p4.connect

        ticket = Auth.ticket_from_login(p4)
      end

      halt 403 if ticket.nil?

      if request.env['HTTP_ACCEPT'] =~ /application\/json/
        content_type 'application/json'
        return {
            ticket: ticket
        }.to_json
      else
        content_type 'text/plain'
        return ticket
      end
    end
  end
end